1. C: Rafael was dedicated: For hours he would stand quietly; noting each detail; soting up in his little head the things he learned there.
2. A: Biographies are wrtitten about famous or well-known people in history.
3. C: their, they're, there sound alike but have different meanings.
4. A: Impressionists painters aimed to express a moment in the lives of ordinary people.
5. B: better: when comparing, the correct is better than.